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  • Title: [Parotid tumours. Only 31% of mixed tumours. In one hundred and seventy-five parotidectomies (author's transl)].
    Author: Massoud E, Tarabay F.
    Journal: Sem Hop; 1982 Jun 10; 58(23):1448-55. PubMed ID: 6287609.
    Abstract:
    This article reports on an analytical study into the etiological aspects of 175 parotidectomies carried out in the Lebanon. In comparing our results with the classical data, we reached a certain number of interesting conclusions. Our study confirms classical breakdown of parotid tumours with 80% benign and 20% malignant. We also confirm the rise in the incidence of malignancy in line with age, and its classical predominance in male patients. Classically, the benign tumours can be divided into 80% mixed tumours, 8% warthin, and 6 to 7% other rare tumours. Our data concerning this breakdown of benign tumours is very different. We found 31% of mixed tumours, which is in line with the figure given by A. Palva. We can therefore conclude that mixed tumours are not the most common form of benign parotid tumours and that the so-called rare tumours account for 69% benign tumours. They include hemangiomas, tubercles, salivary cysts, chronic parotidits and Warthin's tumours. Another difference between the conclusions of our study and classical data concern warthin tumours, which account fort 18% of cases as compared to only 6% in the classical data. We can therefore conclude that the so-called "rare benign tumours of the parotid" show a far higher incidence in our country than the classical 6%, and in fact come far closer to 50% of all cases of benign tumours.
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